This is highly probable: Hydrogen will not be an alternative fuel

 Here's why--- 

https://www.youtube.com/watch?v=awN2w3sGj1w 

Sabine Hossenfelder, a German physicist, explains precisely why Hydrogen most likely will not be used as an alternative source of energy.  Because of her persuasive argument, I fully agree.  The video is only about seven minutes long, and is very convincing.

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Not only my opinion.  Be Well

I'll bet a lot of people have forgotten this aspect of carbon dioxide

Including even elementary school students, by now we all know that CO2 is a "greenhouse gas".  There's another reason to be concerned about excess carbon dioxide in our atmosphere---

https://www.youtube.com/watch?v=58I6YQzBrPo

Sabine is a physicist with 1.48 million subscribers to her YouTube Channel.  She covers many interesting topics, and I appreciate her dry sense of humor.  This recent piece on CO2, Elon Musk, and Trump is quite good, and less than eight minutes long.

Even Musk, who is not up to snuff on most ecological principles, cannot deny this characteristic of CO2.  In fact, he supports concern about it.  Given many of his other views on ecological matters, that's a bit amazing.

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Not only my opinion.  Take Care

A.I. is Ecology Blind, and the Coming Cell Phone "Winter"

 The A.I. portion of the title above is a line from the short video below by the ecologist, Dr. Nate Hagens---

https://www.youtube.com/watch?v=zY29LjWYHIo&list=WL&index=69&t=17s

Ecology essentially is the study of ecosystems.  The complexity of ecosystems is greater than that of anything ever constructed by humans.  Anything.

To address the many aspects of ecosystems requires the sentient minds of humans.  The so-called Artificial Intelligence of today does not possess sentience, and according to some industry experts, probably won't for another sixty to seventy years, if ever.

"Sentience" means a living being (or a machine) is aware of itself as a separate being.  The A.I. industry isn't anywhere near having a machine with that characteristic.  The problems with quantum computing seem to suggest A.I. never will be near it.

The physicist, Sabine Hossenfelder, explains the problems here:

[Some will appreciate her dry humor, some won't.]

https://www.youtube.com/watch?v=CBLVtCYHVO8

I imagine "A.I." has many useful applications, but such does not necessarily mean it has any use at all in, for example, navigating society through the Climate Crisis, or the Sixth Mass Extinction, or the Soil Crisis, or the Groundwater Aquifer Problem, or the Food Crisis, etc.  Listen to the living ecologists, rather than the sometimes faulty algorithms of High Tech.

Dr. Hossenfelder talks about the coming "Quantum Winter" (due to lack of financial investment).  Within ten years, it's probable there also will be a general High Tech "Winter".  Such will not be due to a lack of investment, but rather a shortage of required minerals and materials.  [See https://www.youtube.com/watch?v=O0pt3ioQuNc&list=WL&index=70&t=11s  previously posted on this venue as "Minerals and Materials Blindness".  It's a must-see.]

Instead of the next whiz-bang iPhone, most of those minerals (which are becoming more difficult and costly to extract from the geosphere) will be used for something much more important - electricity.  Then perhaps, finally, people will realize:  no, I don't really need a new cell phone every year or two; but I do need electricity.  [It takes 500 pounds of raw materials to make ONE cell phone.  Over one billion are manufactured every year.]  As they usually do, priorities will shift.

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Not only my opinion.  Take Care